The RIGHT way to cut holes in surfaces in Blender

What people said

Recommends Trey Harper · 2020-04 · Blender Stack Exchange · on “Best way to cut a hole through an object?”

You are correct. There are many different methods and booleans can be tricky. Check this very helpful tutorial: [this video] Onto a curved surface, try going into front orthographic view and lining up a circle in front of your object. Then apply Shrinkwrap modifier so that the circle geometry wraps to the surface of your cylinder. You can then delete the new topology to create the hole. With Booleans, often new, troublesome topology is created. You want Quads, not Tris or N-gons (more than 4 sides). When working with Booleans, you'll need to carefully check your new topology. Functions to be familiar with: Alt-M by distance (merge vertices), Select by Trait- Faces by Sides (>=4). The former funct

Recommends Trey Harper · 2020-05 · Blender Stack Exchange · on “Weird shading on mesh after using boolean?”

Ditto what @moon boots said. If you count the vertices surrounding the hole, you'll see you have lots of n-gons. Check this helpful video out. Might be exactly what you need. [this video]

Recommends Jedh · 2021-01 · Blender Stack Exchange · on “Subdivision Surface Modifier partly closes holes”

To me, it seems like the meshes aren't connected. So the one mesh overlaps the other. You can either merge the two by selecting everything and pressing M (while in Edit Mode ) and then choosing merge by distance . Another option would be pressing P while in Edit Mode and choosing Separate by Loose Parts . After that you can tab out of Edit Mode and select both objects and using a boolean Modifier set to Union to combine both Objects. If you use the Subdivision Modifier after the Boolean it should consider them as connected. In general it's a difficult situation though because you have to connect to pieces of geometry that have an uneven number of vertices at the connection point. There is al

Cites SimpleLizard · 2021-06 · Blender Stack Exchange · on “How do you cut on multiple faces at the same time?”

Please go light on me, this is my first time posting and I am just starting Blender this week. My issue is, is that I am trying to cut a hole in a cylinder. It's an archway that acts as a walkway into the cylinder. However, I need to cut this archway on multiple sides and at various heights. Think colosseum, just smaller and less sophisticated. I have used the following youtube tutorial up to deleting faces. (Note: To be more clear, I have not deleted any faces yet) [this video] This is what it looks like so far: [LINK] every face that is similar to the one with the arch I need to have an arch on to cut the hole. I hope I have made sense. Thanks in advance.

Cites confusionillusion · 2024-01 · Blender Stack Exchange · on “How to cut a hole in a curved surface and maintain good topology?”

Blend file: [LINK] I am trying to add two holes to my shape (these holes will then connect to a truncated torus, forming the handle of a mug). I was following this technique: [this video] The issue: my shape has a bit more curvature than the one in the example video, so either The "cutter" has enough geometry to conform to the mug, but cleaning up the topology seems difficult because there are significantly more vertices/edges in the cutter than in the mug shape. [LINK] The "cutter" has roughly the same "geometry density" (not sure what the appropriate terminology is) as the mug, but it is not enough to conform to all of the folds on the mug, so filling in the geometry would create the wrong shap